Here is a reliable "Independant" back up server that's been around for many years and doesn't go down everytime Ilan hostong or Kali Tracker does.
Wizards Castle at 206.99.178.2
If Wizards Castle doesn't show on your server list simply cancle out of the update and tracker search when you start Kali then go to the chat servers menu on the menu bar of the main Kali window, select "Connect to Address.." and paste in 206.99.178.2. You can leave the port number blank. Once you're there you should see it in your server list and you can add the server to your favorites list.
Tankie2